HowTo: Uninstall MySQL Server in Ubuntu Linux

To uninstall the MySQL server on Ubuntu Linux, follow these steps:

1. Stop the MySQL server by running the following command:

sudo service mysql stop

2. Remove the MySQL server package by running the following command:

sudo apt-get remove --purge mysql-server mysql-client

3. Remove the MySQL server's data directory, which is typically located at /var/lib/mysql. You can remove it using the rm command:

sudo rm -rf /var/lib/mysql

4. Remove any remaining MySQL-related configuration files. These are typically stored in the /etc/mysql directory. You can remove them using the rm command:

sudo rm -rf /etc/mysql

5. Remove any MySQL-related log files. These are typically stored in the /var/log/mysql directory. You can remove them using the rm command:

sudo rm -rf /var/log/mysql

6. Remove any MySQL-related user accounts and groups. These are typically named mysql. You can use the userdel and groupdel commands to remove these accounts and groups.

After completing these steps, the MySQL server should be fully uninstalled from your Ubuntu system.

Note: These steps will also remove any databases that you have created with MySQL. If you want to keep your databases, you should make a backup before uninstalling MySQL.